Hi
I have a CDB with two PDBS.
U71013576@P11CDB6.ecc03cas06vm01 [18c RAC] select sys_context
('userenv','CON_NAME') from dual;
SYS_CONTEXT('USERENV','CON_NAME')
---------------------------------------------------------------------------------------------------
CDB$ROOT
U71013576@P11CDB6.ecc03cas06vm01 [18c RAC] @pdbs
INST_ID PDB_ID PDB_NAME DBID STATUS
LOGGING CREATION_TIME CREATION_SCN OPEN_TIME
OPEN_MODE
------- ------ -------------------- ---------------------- ----------
--------- ------------- --------------- ------------------------------
----------
6 2 PDB$SEED 1805877491 NORMAL
LOGGING 05/03/18 1477953 18/09/19 15:50:29,349 -03:00 READ
ONLY
3 P02NGP 548521466 NORMAL
LOGGING 16/09/19 15784573530790
MOUNTED
4 P00NGP 630270457 NORMAL
LOGGING 17/09/19 15784573918734 18/09/19 16:33:14,867 -03:00 READ
WRITE
7 2 PDB$SEED 1805877491 NORMAL
LOGGING 05/03/18 1477953 18/09/19 15:50:29,478 -03:00 READ
ONLY
3 P02NGP 548521466 NORMAL
LOGGING 16/09/19 15784573530790
MOUNTED
4 P00NGP 630270457 NORMAL
LOGGING 17/09/19 15784573918734 18/09/19 16:33:14,873 -03:00 READ
WRITE
8 2 PDB$SEED 1805877491 NORMAL
LOGGING 05/03/18 1477953 18/09/19 15:50:28,657 -03:00 READ
ONLY
3 P02NGP 548521466 NORMAL
LOGGING 16/09/19 15784573530790 18/09/19 16:08:25,995 -03:00
MOUNTED
4 P00NGP 630270457 NORMAL
LOGGING 17/09/19 15784573918734 18/09/19 16:33:14,871 -03:00 READ
WRITE
When I check for DBID using userenv I got the CDB$ROOT DBID. That's OK,
while this is the current container.
U71013576@P11CDB6.ecc03cas06vm01 [18c RAC] r
1 select
2 sys_context ('userenv','DBID') DBID,
3 sys_context ('userenv','DB_NAME') DB_NAME,
4 sys_context ('userenv','DB_UNIQUE_NAME') DB_UNIQUE_NAME
5* from dual
DBID DB_NAME
DB_UNIQUE_NAME
------------------------------ ----------------------------------------
----------------------------------------
2416754358 P11CDB
P11CDB
But when I "move" to the PDB...
U71013576@P11CDB6.ecc03cas06vm01 [18c RAC] alter session set
container=P00NGP;
U71013576@P11CDB6.ecc03cas06vm01 [18c RAC] select sys_context
('userenv','CON_NAME') from dual;
SYS_CONTEXT('USERENV','CON_NAME')
------------------------------------------------------------------------------------------------
P00NGP
U71013576@P11CDB6.ecc03cas06vm01 [18c RAC] @pdbs
INST_ID PDB_ID PDB_NAME DBID STATUS
LOGGING CREATION_TIME CREATION_SCN OPEN_TIME
OPEN_MODE
------- ------ -------------------- ---------------------- ----------
--------- ------------- --------------- ------------------------------
----------
6 4 P00NGP 630270457 NORMAL
LOGGING 17/09/19 15784573918734 18/09/19 16:33:14,867 -03:00 READ
WRITE
7 4 P00NGP 630270457 NORMAL
LOGGING 17/09/19 15784573918734 18/09/19 16:33:14,873 -03:00 READ
WRITE
8 4 P00NGP 630270457 NORMAL
LOGGING 17/09/19 15784573918734 18/09/19 16:33:14,871 -03:00 READ
WRITE
U71013576@P11CDB6.ecc03cas06vm01 [18c RAC] r
1 select
2 sys_context ('userenv','DBID') DBID,
3 sys_context ('userenv','DB_NAME') DB_NAME,
4 sys_context ('userenv','DB_UNIQUE_NAME') DB_UNIQUE_NAME
5* from dual
DBID DB_NAME
DB_UNIQUE_NAME
------------------------------ ----------------------------------------
----------------------------------------
2416754358 P00NGP
P11CDB
The DBID is still the CDB$ROOT DBID, *2416754358*, and not the current PDB
DBID, *630270457*.
In other words: ('userenv','DBID') is not following ('userenv','DB_NAME'),
but ('userenv','DB_UNIQUE_NAME').
